Artists' Pigments: Their Chemical and Physical Properties

Εξώφυλλο
D. Van Nostrand Company, 1923 - 228 σελίδες

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Σελίδα 208 - CAPACITY. marked. 4 gills = 1 pint pt. 2 pints -. 1 quart i/f. 4 quarts = 1 gallon gal. 2 gallons = 1 peck pk, 4 pecks ~ 1 bushel /<».-„'• . 8 bushels = 1 quarter qr.
Σελίδα 207 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 206 - MEASURE 144 sq. in. = 1 sq. ft. 9 sq. ft. = 1 sq. yd.
Σελίδα 207 - APOTHECARIES' WEIGHT. 20 grains (gr.) = 1 scruple (3). 3 scruples = 1 dram (3). 8 drams = 1 ounce ( 5 ). 12 ounces = 1 pound (ft).
Σελίδα 208 - In counting many kinds of articles we use these measures : 12 things = 1 dozen (doz.) 12 dozen = 1 gross (gr.) 12 gross = 1 great gross (G. gr.) 20 things = 1 score...
Σελίδα 181 - Triclinic CHRYSOCOLLA, 383 CuSiO3.nH2O Amorphous The United States produces about 30 per cent of the world's copper. Copper is used most extensively for the transmission of electricity and in castings and alloys. Brass consists of copper and zinc; German silver of copper, zinc, and nickel; bronze and bell metal of copper, tin, and zinc.
Σελίδα 155 - An acid is a hydrogen compound whose water solution contains hydrogen ions.
Σελίδα 207 - Apothecaries' weight: 20 grains = 1 scruple; 3 scruples = 1 dram; 8 drams = 1 ounce; 12 ounces = 1 pound.
Σελίδα 58 - Soon after the discovery of Eosin dye, in 1876, many lake pigments were introduced having this powerful and brilliant, but exceedingly fugitive dye as the coloring principal on various bases. The Geranium Lakes used principally in the fine arts are precipitated on the transparent alumina hydrate base. This color when produced from fugitive dyes, such as Eosin, Erythrosine, etc., fades in, very short time and should not be used, even if only a fair amount of permanence is required.
Σελίδα 45 - Perkin discovered a beautiful violet compound, mauve, while experimenting with aniline. During the next few years he established the manufacture of mauve on a commercial basis. This proved to be the starting point for a great industry for the preparation of thousands of different colors of almost every conceivable hue by synthetic processes.

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